Cosmic Brownie Bites

Why You’ll Love This Recipe

I love these brownie bites because they’re tiny, adorable, and packed with deep chocolate flavor. The centers stay soft and fudgy, the tops get a little crackle, and the rainbow sprinkles bring instant joy. Whether I’m making them for a birthday, a holiday, or just a late-night treat, they’re always a hit—and they disappear fast.

Ingredients

(Here’s a tip: Check out the full list of ingredients and measurements in the recipe card below.)

• 1/2 cup (1 stick) unsalted butter

• 1 cup granulated sugar

• 2 large eggs

• 1 teaspoon vanilla extract

• 1/3 cup unsweetened cocoa powder

• 1/2 cup all-purpose flour

• 1/4 teaspoon salt

• 1/4 teaspoon baking powder

• 1/2 cup semisweet chocolate chips

• 2 tablespoons rainbow sprinkles (plus more for topping)

Directions

1. I preheat the oven to 350°F (175°C) and grease a mini muffin tin or line it with mini cupcake liners.

2. I melt the butter in a saucepan over low heat or microwave it until fully melted.

3. I stir in the sugar until well combined, then whisk in the eggs and vanilla until smooth.

4. I sift in the cocoa powder, flour, salt, and baking powder, folding gently until just combined—being careful not to overmix.

5. I stir in the chocolate chips and sprinkles, saving a little of the sprinkles for topping.

6. I spoon the batter into the mini muffin tin, filling each cavity about two-thirds full.

7. I sprinkle the reserved rainbow sprinkles on top of each brownie bite.

8. I bake for 10–12 minutes, just until the edges are set and the centers are still a bit gooey.

9. I let them cool in the pan for 5 minutes, then transfer to a wire rack to cool completely before serving.

Servings and timing

• Serves: 24 brownie bites

• Prep time: 10 minutes

• Cook time: 12 minutes

• Total time: 22 minutes

• Calories: Approximately 95 kcal per bite

Variations

• Add a teaspoon of espresso powder to deepen the chocolate flavor.

• Use white chocolate or peanut butter chips for a fun twist.

• Drizzle melted chocolate over the cooled brownie bites for an extra indulgent finish.

• Make them extra gooey by pressing a few chocolate chunks into the centers before baking.

• Swap rainbow sprinkles for themed ones for holidays or birthdays.

Storage / reheating

I store these brownie bites in an airtight container at room temperature for up to 4 days. For longer storage, I refrigerate them for up to a week or freeze them in a sealed bag for up to 3 months. I let them come to room temp or give them a quick 5-second microwave blast for that fresh-baked feel.

FAQs

Can I use boxed brownie mix for this?

Yes—I’ve done that when in a pinch. I just prepare the mix as directed and stir in the chocolate chips and sprinkles before baking in the mini muffin tin.

How do I know when they’re done?

I check that the edges are firm but the centers are still slightly soft. They’ll firm up a bit more as they cool, keeping that fudgy texture.

Can I make them gluten-free?

Yes—I use a 1:1 gluten-free flour blend and double-check all other ingredients to keep them gluten-free.

Do I need to use liners?

Not at all—I usually just grease the mini muffin tin well, and they pop out easily after cooling for a few minutes.

Can I make these ahead for a party?

Absolutely—I bake them a day or two in advance, and they stay moist. I store them in an airtight container and add a fresh sprinkle of extra sprinkles right before serving for a just-baked look.

Conclusion

These Cosmic Brownie Bites are my go-to for easy, crowd-pleasing desserts. They’re fudgy, colorful, and impossible to eat just one. Whether I make them for a party, lunchbox treat, or just because it’s Tuesday, they bring smiles every single time.